INFORMATION PROVIDING SYSTEM, SERVER, AND INFORMATION PROVIDING METHOD

An information providing system includes a server, a plurality of power-supplying vehicles, and a plurality of power-receiving vehicles. Each power-supplying vehicle is configured to transmit power-supplying permission information to the server, the power-supplying permission information indicating current location and possible power-supplying amount of the power-supplying vehicle. Each power-receiving vehicle is configured to transmit power-receiving request information to the server, the power-receiving request information indicating current location and requested power-receiving amount of the power-receiving vehicle. The server is configured to: determine vehicles to be matched and a gathering location of the vehicles using the power-supplying permission information (current location and possible power-supplying amount) of the power-supplying vehicle and the power-receiving request information (current location and requested power-receiving amount) of the power-receiving vehicle; and transmit the determined gathering location to the matched vehicles.